JD

James J. Duffy

Ford: 20 patents #851 of 17,473Top 5%
OC Occidental Chemical: 1 patents #180 of 341Top 55%
📍 Livonia, MI: #51 of 1,586 inventorsTop 4%
🗺 Michigan: #3,523 of 86,293 inventorsTop 5%
Overall (All Time): #198,600 of 4,157,543Top 5%
22
Patents All Time

Issued Patents All Time

Showing 1–22 of 22 patents

Patent #TitleCo-InventorsDate
6813863 Automobile protection system 2004-11-09
5392875 Hydraulic reaction variable assist power steering system 1995-02-28
5307895 "Hydraulic reaction variable assist power steering control hydraulic ""detent""" 1994-05-03
5297647 Variable assist power steering gear with hydraulic reaction controls 1994-03-29
5224564 Hydrostatic power steering system 1993-07-06
5165702 Seal ring assembly for high pressure valves 1992-11-24
5029513 Variable-orifice, servo-solenoid valve for a variable-assist power steering system 1991-07-09
4926956 Electronically controlled steering system 1990-05-22
4877099 Electronically controlled variable assist power steering system 1989-10-31
4828067 Electronic power assist control steering system 1989-05-09
4760892 Variable assist power steering system using electronic pressure control 1988-08-02
4742883 Pinion ball bearings with preload adjustment for power rack and pinion steering gears 1988-05-10
4714413 Speed sensitive power steering pump unload valve 1987-12-22
4609331 Speed sensitive power steering valve 1986-09-02
4586582 Power steering system with vehicle speed-sensitive flow 1986-05-06
4570735 Dual rotary valve for variable assist power steering gear for automotive vehicles 1986-02-18
4561521 Variable assist power steering system 1985-12-31
4516471 Power steering valve with chamfered lands 1985-05-14
4504611 Flame retardant polyamide compositions Charles S. Ilardo 1985-03-12
4485883 Power steering system with vehicle speed-sensitive flow 1984-12-04
4434866 Speed-sensitive power steering system 1984-03-06
4378030 Power steering gear mechanism with rotary control valve 1983-03-29